Using the Classification Chart:

  • Simply move your cursor across the chart. Anywhere the chart turns yellow, you can click and get information.
  • If you click on a cell in the chart that has the power-to-weight factor (numbers in the cells in the middle of the chart), you will open a page that shows you all the classes for the car (left-hand column) and engine (top columns) combination.
  • If you click on some of the cells at the top of each column that describe the engine, you will open a page that show the engine tech specs, or blueprint information.
  • If you click on one of the cells in the left column that shows the car description, you will open a page that shows information about that car-model-body style.
  • If you want to learn more about the classification process, click here.

CHEVROLET 1964
 230283283327327327327409409409409
 140hp195hp195hp250hp250hp300hp300hp340hp400hp425hp425hp
St=Stock, SS=Super Stock StkSSStkSSStkSS  StkSS
Notes - See below   1111    
         Manual onlyManual onlyManual only
            
BISCAYNE     119" wb           
Sedan 2 Dr 23.0719.7917.2514.0413.7612.9812.2810.468.898.788.37
Sta Wag 4 Dr 6 26.4222.4619.5815.8815.5614.6813.9011.8010.039.919.44
Sedan 4 Dr 23.5720.1617.5814.2914.0013.2112.5010.659.058.948.52
BEL AIR     119" wb           
Sedan 2 Dr 23.1019.8217.2814.0513.7712.9912.2910.488.918.808.38
Sta Wag 4 Dr 6 26.4622.4919.6115.9115.5914.7113.9211.8110.049.929.45
Sta Wag 4 Dr 9 26.7522.7419.8216.0715.7514.8614.0611.9410.1510.029.55
Sedan 4 Dr 23.6020.2417.6414.3314.0413.2512.5410.699.098.978.55
IMPALA     119" wb           
Sta Wag 4 Dr 6 26.6022.6419.7416.0115.6914.8014.0111.8910.119.989.51
Sedan 4 Dr 6 (Sport)24.0720.5217.8914.5314.2413.4412.7210.849.219.108.67
Sta Wag 4 Dr 9 26.9222.9119.9716.1915.8714.9714.1712.0310.2210.109.62
Coupe 2 Dr 5 (Sport)23.5320.0817.5114.2213.9413.1512.4510.619.028.918.49
Convertible 2 Dr 24.2820.7318.0714.6914.3913.5812.8510.949.309.188.75
Sedan 4 Dr 6 23.8520.3517.7414.4214.1313.3312.6110.759.149.028.60
SUPER SPORT     119" wb           
Coupe 2 Dr 423.7520.2917.6914.3714.0813.2812.5710.719.118.998.57
Convertible 2 Dr 424.5320.9118.2314.8014.5113.6912.9511.039.379.268.82
            
Stock/SS Factors140170195245250265280340400405425
  01/01/11 01/26/16 01/23/1205/30/12  12/18/03 
Stock/SS Factors w/Rep Heads   250260270285    
    01/01/1801/01/1801/01/18     

CHEVROLET 1964              4/17/2018 PC

      Notes:
1 - Accepted Replacement heads: RHS Cast Iron Heads #12400 & #12402. Dart Cast Iron Heads casting nos. 10021070 & 100220010. World Products Cast Iron Heads casting nos. 043600 & 043610. Edelbrock heads #60887, 60647,60637, or 60617.
2 - These heads may be used in SS only, not in Stock Eliminator.


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